CN216929998U - Touch button and refrigerator - Google Patents

Abstract

The utility model discloses a touch key and discloses a refrigerator with the touch key, wherein the touch key comprises a PCB (printed Circuit Board), a luminous element, a light transmission element and a conductive element, the luminous element is electrically connected to the PCB, the light transmission element is connected to the PCB, one end of the light transmission element facing the luminous element is provided with a light guide column, the conductive element is arranged between the luminous element and the light transmission element, one end of the conductive element is electrically connected to the PCB, and the other end of the conductive element is abutted against the light transmission element.

Description

Touch button and refrigerator

Technical Field

The utility model relates to the technical field of keys, in particular to a touch key and a refrigerator.

Background

The touch key can penetrate through an insulating material shell (such as glass, plastic and the like) and can accurately detect effective touch of fingers, so that the key with better sealing property can be easily manufactured, and the service life is longer. The touch key can be generally used together with light, the working state of the equipment is represented by the light, the existing touch key can be generally coated with opaque materials on the shell, and only through hole silk-screen patterns are reserved in the middle of the existing touch key for emitting light, so that the touch key is uneven in light emission.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the utility model provides a touch key which can emit light more uniformly.

The utility model further provides a refrigerator with the touch key.

The touch key comprises a PCB, a light-emitting part, a light-transmitting part and a conductive part, wherein the light-emitting part is electrically connected to the PCB; the light-transmitting piece is connected to the PCB, and one end, facing the light-emitting piece, of the light-transmitting piece is provided with a light guide column; the conductive piece is arranged between the luminous piece and the light transmission piece, one end of the conductive piece is electrically connected to the PCB, the other end of the conductive piece is abutted against the light transmission piece, the luminous piece is used for emitting light, and the light guide column can enable the light to be scattered.

The touch key provided by the embodiment of the utility model at least has the following beneficial effects: the one end of printing opacity piece towards the light-emitting piece is equipped with the leaded light post, and when the light-emitting piece was luminous, light jetted out from the one end that printing opacity piece deviates from the leaded light post behind the leaded light post, because light takes place the scattering in the leaded light post, so light can be even jets out from printing opacity piece to make the touch button can evenly give out light.

According to some embodiments of the utility model, a first light blocking layer is disposed on a side of the light-transmitting member close to the light guide pillar.

According to some embodiments of the utility model, an end of the light-transmitting member facing away from the light guide pole is provided with a second light-blocking layer, and the second light-blocking layer is provided with a light-transmitting portion.

According to some embodiments of the utility model, the conductive member is a coil spring disposed around the light emitting member.

According to some embodiments of the utility model, the light-transmitting member is provided with a limiting portion at an end facing the coil spring, and the limiting portion is disposed around the coil spring to limit the coil spring.

According to some embodiments of the utility model, the limiting portion is annular and can cover the light emitting member.

According to some embodiments of the utility model, the light-transmitting member is mounted to the PCB.

According to some embodiments of the present invention, a first engaging member is disposed at an end of the light transmitting member facing the PCB, the PCB is disposed with an engaging hole, and the first engaging member is capable of engaging with the engaging hole.

According to some embodiments of the utility model, the touch key further comprises a mounting member, and the light-transmitting member is clamped on the mounting member.

According to some embodiments of the utility model, the light-transmitting member is further provided with a second clamping member, the mounting member is provided with a clamping groove, and the second clamping member can be clamped in the clamping groove.

The refrigerator provided by the embodiment of the second aspect of the utility model comprises the touch key of the embodiment of the first aspect.

According to the refrigerator provided by the embodiment of the utility model, at least the following beneficial effects are achieved: the refrigerator is provided with the touch key of the first aspect embodiment, so that the touch key of the refrigerator can uniformly emit light.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The utility model is further described with reference to the following figures and examples, in which:

fig. 1 is a schematic structural diagram of a touch key according to an embodiment of the present invention;

FIG. 2 is a front view of a touch key according to an embodiment of the present invention;

FIG. 3 is a cross-sectional view at A shown in FIG. 2;

fig. 4 is a sectional view at B shown in fig. 3;

FIG. 5 is an exploded view of the touch key shown in FIG. 4;

FIG. 6 is a schematic structural diagram of a touch key according to another embodiment of the present invention;

fig. 7 is a schematic structural diagram of a touch key according to another embodiment of the present invention;

fig. 8 is a schematic structural diagram of a touch key according to another embodiment of the present invention.

Reference numerals:

a PCB board 100, a clamping hole 110;

a light emitting member 200;

a conductive member 300;

the light-transmitting part 400, the light-guiding pole 410, the light-transmitting part 420, the first light-blocking layer 430, the limiting part 440, the first clamping part 450, the second clamping part 460, the second light-blocking layer 470, the boss 480 and the abutting part 490;

mounting member 500, card slot 510, and aperture 520.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings only for the convenience of description of the present invention and simplification of the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, the meaning of a plurality of means is one or more, the meaning of a plurality of means is two or more, and larger, smaller, larger, etc. are understood as excluding the number, and larger, smaller, inner, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.

The touch key can penetrate through an insulating material shell (such as glass, plastic and the like), can accurately detect effective touch of fingers, is convenient to manufacture into a key with good sealing property, is not easy to damage, has long service life, and is widely applied to household appliances such as an induction cooker or an electric cooker and the like. The surface of touch button is general comparatively level and smooth, consequently, for the ease of use, all can arrange light use usually, represents the operating condition of equipment through light to and the position of sign touch button, current touch button generally can be at the opaque material of shell spraying, only leaves through-hole silk screen printing pattern in the centre and is used for luminous, leads to the luminous inhomogeneous of touch button, sees inside lamp pearl from the outside very easily.

Therefore, the utility model provides a touch key which can emit light more uniformly.

Referring to fig. 1 to 5, a touch key according to an embodiment of the first aspect of the present invention includes: PCB board 100, illuminating part 200, light-transmitting part 400 and conductive piece 300, PCB board 100 fixed connection is in light-transmitting part 400, illuminating part 200 electricity connect with PCB board 100, control illuminating part 200 work through PCB board 100, conductive piece 300 is located between illuminating part 200 and light-transmitting part 400, conductive piece 300 one end electricity connect in PCB board 100, the other end butts in light-transmitting part 400. It should be noted that the conductive member 300 and the surrounding "ground signal" form an inductive capacitance, when a human finger approaches the touch button, the inductive capacitance interferes with the electric field, thereby causing a change in capacitance, the change signal is transmitted to the PCB board 100, and then the PCB board 100 controls the operation of the light emitting member 200 according to the transmitted signal, for example, controls the light emitting member 200 to be turned on or off, and adjusts the brightness of the light emitting member 200, for example, adjusts the light emitting member 200 to be brighter or darker, etc.

In the technical solution described in the present application, the light-transmitting member 400 is provided with a light-guiding pillar 410 towards one end of the light-emitting member 200, that is, the light-guiding pillar 410 is provided on the inner side of the light-transmitting member 400. One end of the light guide 410 is adjacent to the light emitting member 200 with a certain distance from the light emitting member 200. When the light emitting member 200 emits light, the light is emitted from the light transmitting member 400 through the light guiding column 410, and the light can be emitted from the light transmitting member 400 more uniformly after being scattered in the light guiding column 410, so that the touch key can uniformly emit light.

In some embodiments of the present invention, the light guide pillar 410 and the light transmissive member 400 are integrally formed during manufacturing, and the light guide pillar 410 is not fixed to the light transmissive member 400 by using a fastener such as a screw, which can simplify the installation procedure, improve the installation efficiency, and save the parts for installation.

It should be further noted that the light emitting element 200 may be an LED lamp, including an inserting type LED lamp or a surface mount type LED lamp, the inserting type LED lamp is stably connected to the PCB 100, and is convenient to detach and easy to install. Of course, other light sources may be used as the light emitting member 200. For example, an LCD lamp can be adopted, which has the advantage of convenient installation; alternatively, the light emitting member 200 may be an OLED lamp, which has an advantage of soft light emission. The content may be determined according to specific conditions, and is not particularly limited herein.

In some embodiments of the present invention, a first light blocking layer 430 is disposed on a side of the light transmissive member 400 close to the light guide pillar 410, that is, an inner side of the light transmissive member 400. The first light blocking layer 430 may be formed by spraying opaque paint on the inner side of the light-transmitting member 400, or the first light blocking layer 430 may be formed by adhering opaque material on the inner side of the light-transmitting member 400. It should be noted that, when spraying or pasting the opaque paint, the end surface of the light guide pillar 410 facing the light emitting element 200 needs to be avoided, so that the light can be smoothly emitted from the light guide pillar 410, and the side wall of the light guide pillar 410 may also be provided with the first light blocking layer 430. Through setting up first light blocking layer 430, can reach spotlight effect for the touch button is brighter, under the requirement of same luminance, can practice thrift the energy consumption.

Referring to fig. 6, in some embodiments of the present invention, a second light-blocking layer 470 is disposed on a side of the light-transmissive member 400 facing away from the light guide pole 410, that is, an outer side of the light-transmissive member 400, and the second light-blocking layer 470 may be formed by spraying an opaque paint on the outer side of the light-transmissive member 400 or by attaching an opaque material to the outer side of the light-transmissive member 400, as in the first light-blocking layer 430. The second light blocking layer 470 is provided with a light transmitting portion 420, and a light-transmitting pattern is engraved on the second light blocking layer 470 by means of laser engraving to form the light transmitting portion 420. Because the laser engraving processing is based on the numerical control technology, the laser is the processing medium, the processing material is instantly melted and gasified under the laser irradiation, the processing purpose is achieved, the processing material is not influenced by the elasticity and flexibility of the material, the processing precision is high, and the speed is high, so that various patterns can be processed through the laser engraving. As shown in fig. 6, the light-transmitting portion 420 has an elliptical shape, and the light-transmitting portion 420 corresponds to the light guide pillar 410. For example, when the light guide pillar 410 is cylindrical and the light transmission portion 420 is circular, the center of the light transmission portion 420 is located on the axis of the light guide pillar 410, so that the light emitted from the light emitting member 200 can be scattered in the light guide pillar 410 and smoothly emitted from the light transmission portion 420. Through setting up second light blocking layer 470, can advance and promote spotlight effect, improve the luminance of touch button to can also prevent to cross light each other between the adjacent touch button, improve user's use and experience.

The shape of the light-transmitting portion 420 may correspond to the cross section of the light guide pillar 410, for example, the light guide pillar 410 is a triangular prism, the cross section is a triangle, and the light-transmitting portion 420 is also a triangle. The light guide pillar 410 may also have other shapes, such as an elliptical pillar, a quadrangular prism, etc., and the light-transmitting portion 420 is also provided with a corresponding shape. The structure of the light guide pillar 410 is not particularly limited, and only needs to have a light guide effect.

Of course, the light-transmitting portion 420 may also be a pattern of other marks, for example, a shutdown pattern shown in fig. 7, or may also be a pattern of other shapes, so as to play an obvious marking role, and improve the use experience of the user. The light-transmitting portion 420 may be a character pattern, and referring to fig. 8, the pattern of the light-transmitting portion 420 is "ON" and may indicate power-ON, or may be "OFF" and may indicate power-OFF. It should be noted that the pattern of the light-transmitting portion 420 may also be a chinese character, such as "power off", "power on", "increase", or "decrease". When the touch key is manufactured, different patterns can be engraved according to specific functions, and the specific limitation is not provided herein.

In some embodiments of the present invention, the conductive member 300 may be a coil spring, one end of which is electrically connected to the PCB board 100, and the other end of which abuts against the light-transmitting member 400. The two ends of the coil spring are open, one end of the coil spring is arranged around the luminous piece 200, and the other end of the coil spring is arranged around the light guide column 410, so that the overall structure of the touch key is more compact, and the stability of the coil spring is improved.

In some embodiments of the present invention, a limiting portion 440 is further disposed on an outer periphery of the coil spring for limiting the coil spring and improving stability of the coil spring, and the limiting portion 440 may be composed of a plurality of limiting posts, and the plurality of limiting posts are spaced around the outer periphery of the coil spring and are used for limiting the coil spring and fixing the coil spring. Of course, the limiting portion 440 may also be a plurality of curved limiting plates, and the plurality of limiting plates are disposed around the outer circumference of the coil spring at intervals.

In some embodiments of the present invention, the position-limiting portion 440 may also be a ring structure, and the position-limiting portion 440 extends toward the light-emitting member 200 toward one end of the light-emitting member 200, so as to cover the light-emitting member 200. An end of the stopper portion 440 facing the PCB 100 is spaced apart from the PCB 100 to facilitate mounting of the PCB 100. Meanwhile, a light-blocking layer similar to the first light-blocking layer 430 or the second light-blocking layer 470 is disposed on the inner wall of the limiting portion 440, and a light-blocking layer may be disposed on the outer wall of the limiting portion 440. Therefore, the position-limiting portion 440 can limit the coil spring and cover the light-emitting member 200, thereby preventing light leakage from the touch button.

It should be noted that the conductive member 300 may also be a conductive metal sleeve or a conductive graphite sleeve, and the conductive metal sleeve is sleeved on the light emitting member 200, one end of the conductive metal sleeve is electrically connected to the PCB 100, and the other end of the conductive metal sleeve is in contact with the inner wall of the light transmitting member 400, and the conductive metal sleeve also has a light blocking effect, so as to prevent crosstalk between the touch keys. The conductive graphite sleeve and the conductive metal sleeve have the same functions and effects, and are not described in detail herein.

In some embodiments of the present invention, the PCB 100 is clamped with the light-transmitting member 400, one end of the light-transmitting member 400 facing the PCB 100 is provided with the first clamping member 450, the first clamping member 450 is integrally formed with the light-transmitting member 400, and the first clamping member 450 is an elastic structure, as shown in fig. 4, the clamping end of the first clamping member 450 is provided with a clamping hook, the outer side of the clamping hook is provided with an inclined guide surface, the corresponding position of the PCB 100 is provided with the clamping hole 110, when the PCB 100 is mounted, the PCB 100 is pressed toward the light-transmitting member 400, and the clamping hook of the first clamping member 450 can be smoothly clamped into the clamping hole 110 by the guide of the inclined guide surface. First joint spare 450 is the plastics material, when clamping with PCB board 100, can need not be like connecting through electrically conductive parts such as screw and need reserve the creepage distance of 8 mm (creepage distance is the shortest path between two electrically conductive parts or electrically conductive parts and the equipment protection interface of surveying along insulating surface) to can practice thrift installation space, can also reduce the installation part through the mode of joint.

It should be noted that, the light-transmitting member 400 may be provided with two first engaging members 450 respectively located at two sides of the light-transmitting member 400, and the PCB 100 is provided with a corresponding number of engaging holes 110 at corresponding positions to stably engage the PCB 100 with the light-transmitting member 400, and of course, a greater number of first engaging members 450 may also be provided, for example, three or four, to improve the stability of engaging the PCB 100 with the light-transmitting member 400, and the number of the first engaging members 450 and the engaging holes 110 may be determined according to actual situations, which is not specifically limited herein.

In some embodiments of the present invention, the touch key further includes a mounting member 500, the light-transmitting member 400 is clamped to the mounting member 500, the light-transmitting member 400 is provided with a second clamping member 460, the second clamping member 460 is integrally formed with the light-transmitting member 400, the mounting member 500 is provided with a clamping groove 510, and the second clamping member 460 is clamped in the clamping groove 510 to clamp the light-transmitting member 400 to the mounting member 500. Second joint piece 460 is the elastic component, and during installation light-transmitting piece 400, towards installation part 500 direction extrusion light-transmitting piece 400, elastic deformation takes place for first joint piece 450, and when reacing the installation position, second joint piece 460 kick-backs to can block into draw-in groove 510 in, thereby with light-transmitting piece 400 joint in installation part 500.

It should be noted that two second clamping members 460 may be disposed on the light-transmitting member 400, and the mounting member 500 is provided with a corresponding number of clamping slots 510, so as to stably clamp the light-transmitting member 400 on the mounting member 500, and of course, a greater number of second clamping members 460, such as three, may also be disposed. The number of the second clip 460 and the card slot 510 may be determined according to practical situations, and is not particularly limited herein. It should be noted that the second clip 460 may be a column or a plate, and the size and shape of the slot 510 are determined according to the shape of the second clip 460.

In some embodiments of the present invention, the mounting member 500 is provided with a through hole 520, the light-transmissive member 400 is provided with a boss 480, and the boss 480 is disposed within the through hole 520. The size of the boss 480 is matched to the size of the through hole 520 to improve stability between the light-transmitting member 400 and the mounting member 500. The light-transmitting member 400 further has a contact portion 490, the contact portion 490 contacts the inner wall of the mounting member 500, and a second engaging member 460 is engaged with the engaging groove 510, so as to stably connect the light-transmitting member 400 to the mounting member 500.

In some embodiments of the present invention, the mounting member 500 is made of a metal material, and the light-transmitting member 400 is made of a light-transmitting plastic material. The first clamping piece 450, the second clamping piece 460 and the light guide column 410 are integrally formed with the light transmission piece 400, so that installation materials can be saved, installation space is saved, and the internal structure of the touch key is more compact.

The refrigerator of the embodiment of the second aspect of the present invention comprises: the touch key according to the embodiment of the first aspect adopts all technical solutions of the touch key according to the embodiment of the first aspect, so that the refrigerator at least has beneficial effects brought by the technical solutions in the embodiments, for example, the touch key of the refrigerator can uniformly emit light, and the like, and details are not repeated here.

It should be noted that the touch key may also be used in other household appliances, such as any one of a microwave oven, an electric cooker, a water heater, an electromagnetic oven, an electric oven, a range hood, an electric fan, a water dispenser, and a juice extractor, or may also be an air conditioner, a television, and so on.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.

Claims (11)

1. A touch key, comprising:

a PCB board;

the luminous piece is electrically connected to the PCB;

the light-transmitting piece is connected to the PCB, and a light guide column is arranged at one end, facing the light-emitting piece, of the light-transmitting piece;

the conductive piece is arranged between the luminous piece and the light-transmitting piece, one end of the conductive piece is electrically connected to the PCB, and the other end of the conductive piece is abutted against the light-transmitting piece;

wherein, the illuminating part is used for emitting light, the leaded light post can make light takes place the scattering.

2. The touch key of claim 1, wherein a first light blocking layer is disposed on a side of the light transmissive member adjacent to the light guide.

3. The touch key as recited in claim 2, wherein an end of the light-transmissive member facing away from the light-guiding pillar is provided with a second light-blocking layer, and the second light-blocking layer is provided with a light-transmissive portion.

4. The touch key of claim 1, wherein the conductive member is a coil spring disposed around the light emitting member.

5. The touch key of claim 4, wherein the light-transmitting member is provided with a position-limiting portion at an end facing the coil spring, and the position-limiting portion is disposed around the coil spring to limit the coil spring.

6. The touch key of claim 5, wherein the limiting portion is annular and covers the light emitting member.

7. The touch key of claim 1, wherein the light-transmitting member is engaged with the PCB.

8. The touch key of claim 7, wherein the end of the light-transmitting member facing the PCB is provided with a first engaging member, the PCB is provided with an engaging hole, and the first engaging member is engageable with the engaging hole.

9. The touch key of claim 8, further comprising a mounting member, wherein the light transmissive member is engaged with the mounting member.

10. The touch key of claim 9, wherein the light-transmitting member further comprises a second engaging member, and the mounting member comprises a slot, and the second engaging member is engaged with the slot.

11. A refrigerator characterized by comprising the touch key according to any one of claims 1 to 10.

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